Renesas R5F5651CDGFP#30

Overview

R5F5651CDGFP#30 from Renesas is a 120-MHz 32-bit RXv2 core MCU with single-precision IEEE-754 FPU, 240 DMIPS performance, 1 MB on-chip code flash memory, 256 KB SRAM, and integrated Ethernet MAC, CAN, USB 2.0 FS, SD host/slave, QSPI, and GLCDC for industrial HMI and networked embedded control applications.

For engineers reviewing the R5F5651CDGFP#30 datasheet, R5F5651CDGFP#30 pinout, R5F5651CDGFP#30 application, or R5F5651CDGFP#30 equivalent, key selection criteria include dual-bank flash support for safe firmware updates, 136 GPIOs with 5-V tolerance, 12-bit A/D (21-channel unit), real-time clock with battery backup, and IEC60730-compliant safety features including TSIP encryption and CRC calculator.

Technical Context

The R5F5651CDGFP#30 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code. It integrates a dedicated 120-kHz IWDT oscillator, MPU for memory protection, and Trusted Memory (TM) to restrict instruction fetches from protected flash regions.

Its clock system supports external crystal (8–24 MHz) or internal HOCO/LOCO sources, with independent PCLKA (up to 120 MHz), PCLKB (up to 60 MHz), and ADCLK domains. Peripheral clocks are fully configurable via PLL and dividers, enabling precise timing isolation for Ethernet, ADC, and display subsystems.

Key Specifications

Pinout & Package

LQFP-176 package (PLQP0176KB-A), 24 × 24 mm body, 0.5-mm pitch, thermally enhanced with exposed pad. Pin count: 176 total terminals; 136 general-purpose I/O pins, 1 dedicated IRQ input, 1 reset pin, 12 power/ground pins, and dedicated function pins for Ethernet, USB, SD, CAN, and display interfaces.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with R5F5651CDGFP#30, the R5F5651EDGFP#30 provides scalable memory headroom without changing PCB layout, while the R5F566TEADFP#30 trades display and storage interfaces for deterministic motor-control timing-making R5F5651CDGFP#30 the optimal choice for connected HMI and gateway applications requiring balanced compute, connectivity, and graphics capability.

Availability

R5F5651CDGFP#30 is available at Aetrix Electronics and suitable for industrial HMI panels, networked PLC controllers, smart energy gateways, and medical data loggers requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for R5F5651CDGFP#30 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX651 Group, including R5F5651CDGFP#30, is designed for industrial human-machine interfaces and networked edge devices requiring rich connectivity, graphics acceleration, functional safety, and secure firmware execution.

FAQ

What is the maximum operating frequency and CPU performance of the R5F5651CDGFP#30?

The R5F5651CDGFP#30 operates at a maximum frequency of 120 MHz using the RXv2 32-bit CPU core and delivers 240 DMIPS of processing performance. Its single-precision IEEE-754 floating-point unit, dual multiply-accumulate units, and 5-stage pipeline enable efficient real-time computation for industrial control and graphics rendering tasks within the R5F5651CDGFP#30.

Does the R5F5651CDGFP#30 support secure firmware updates and cryptographic operations?

Yes, the R5F5651CDGFP#30 includes Trusted Secure IP (TSIP) hardware acceleration for AES-128/192/256 encryption and decryption, a CRC calculator supporting multiple polynomials, memory protection unit (MPU), and Trusted Memory (TM) to prevent unauthorized code reading from protected flash regions-enabling secure boot and authenticated firmware updates in the R5F5651CDGFP#30.

What display and graphics capabilities does the R5F5651CDGFP#30 provide?

The R5F5651CDGFP#30 integrates a Graphic-LCD Controller (GLCDC) supporting 3-layer overlay (background + 2 graphics) and a 2D Drawing Engine (DRW2D) for hardware-accelerated vector primitives, bit blitting, rotation, and texture mapping. These features eliminate the need for external graphics ICs in HMI applications built around the R5F5651CDGFP#30.

Can the R5F5651CDGFP#30 interface directly with Ethernet PHYs and SD cards?

Yes, the R5F5651CDGFP#30 includes a full MII-compatible Ethernet MAC supporting 10/100 Mbps, and both SD host interface (SDHI) and SD slave interface (SDSI) compliant with SD 3.01 and SDIO 3.00 specifications. These integrated peripherals allow direct connection to standard Ethernet PHYs and SD/SDIO cards without external bridge ICs in designs based on the R5F5651CDGFP#30.

What are the power supply requirements and low-power modes supported by the R5F5651CDGFP#30?

The R5F5651CDGFP#30 operates from a single 2.7–3.6 V supply and consumes only 0.19 mA/MHz typical in active mode. It supports four low-power modes-sleep, all-module clock stop, software standby, and deep software standby-with RTC and 8 KB standby RAM retained in deep standby. Battery backup via VBATT maintains RTC operation during main power loss in the R5F5651CDGFP#30.